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Scuba News..because we can’t be underwater all the time
Archive for February, 2009NASA’s global warming satellite falls to EarthFriday, February 27th, 2009
NASA's new satellite dedicated to mapping Earth's carbon dioxide levels crashed into the ocean near Antarctica just after launch. It was NASA's first satellite built exclusively to map carbon dioxide levels on Earth and understand how humanity's contribution of the greenhouse gas is affecting global climate change.
Faulty Sensor causes Arctic Sea Ice ErrorThursday, February 26th, 2009
A faulty sensor has caused a slowly growing underestimation of Arctic sea ice extent by the National Snow and Ice Data Center (NSIDC). The underestimation reached approximately 500,000 square kilometers (193,000 square miles) by mid-February.
Scuba CaribbeanWednesday, February 25th, 2009
Seventy-five species of coral and over 500 species of fish, clear water, sandy bottoms, and relatively shallow depth combine to make Caribbean conditions especially interesting for both novice and expert divers. This claims to be the first all-inclusive book providing an overview of the many islands in the Caribbean, plus the Bahamas and Bermuda. It provides information on dive sites, dive operators, pertinent island or country information and diver-friendly accommodation. Good reference for anyone looking for new scuba destinations in the Caribbean. See also http://www.scubatravel.co.uk/americas/
Best Diving in Europe: Top Ten Dive SitesTuesday, February 24th, 2009
See the top ten dive sites in Europe, as voted for by SCUBA Travel readers. The Zenobia (Cyprus) takes the top spot, closely followed by the Blue Hole (Gozo), Cirkewwa (Malta) and the Booroo (Isle of Man). Disagree with the list? Cast your vote at http://www.scubatravel.co.uk/topdiveseurope.html
Threat To Cod Fisheries: Pathogenic Bacterium Identified In CodMonday, February 23rd, 2009
Farmed cod have recently been hit by a serious disease caused by an unknown bacterium. The bacterium has now been identified, and called Francisella philomiragia noatunensis. The disease is called francisellosis and is listed in the national disease register and regulated under the terms of the Norwegian Food Act.
This new bacterium has caused significant loss in the cod farming industry in recent years. However, it may also pose a threat to farmed salmon since it occurs naturally in coastal waters and is liable to cause disease in a range of marine species. The bacterium is not harmful to warm-blooded animals.
Coastal fish farms pollute the SeaThursday, February 19th, 2009
Marine aquaculture can have some nasty side effects, especially when the pens are set near sensitive coastal environments. All those fish penned up together consume massive amounts of commercial feed, some of which drifts off uneaten in the currents. And the crowded fish, naturally, defecate and urinate by the tens of thousands, creating yet another unpleasant waste stream. The wastes can carry disease, causing damage directly. Or the phosphate and nitrates in the mix may feed an algae bloom that sucks the oxygen from the water, leaving it uninhabitable, a phenomenon long associated with fertilizer runoff. New research shows "the icky stuff from the pens will travel farther, and in higher concentrations, than had been generally assumed".
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